Hostname: page-component-848d4c4894-pjpqr Total loading time: 0 Render date: 2024-07-07T01:01:43.541Z Has data issue: false hasContentIssue false
  • English
  • Français

The Neoproterozoic to early Cambrian in southwest Mongolia: an introduction

Published online by Cambridge University Press:  01 May 2009

M. D. Brasier ,
D. Dorjnamjaa  and
J. F. Lindsay
M. D. Brasier
Affiliation:
Department of Earth Sciences, Oxford University, Parks Road, Oxford OX1 3PR, UK
D. Dorjnamjaa
Affiliation:
Geological Institute, Ulaan Bataar, Mongolia
J. F. Lindsay
Affiliation:
Australian Geological Survey Organization, Canberra, Australia
Get access Rights & Permissions [Opens in a new window]

Extract

In this collection of papers, we attempt to document, through interdisciplinary studies in southwest Mongolia, the interlinked evolution of the biosphere and lithosphere over the Neoproterozoic–Cambrian interval. In so doing, we bring together the fruits of two expeditions to the Altay mountains, sponsored by IGCP Project 303 on Precambrian–Cambrian Event Stratigraphy. Both expeditions took place during an interval of great socio-economic change in the region. The first expedition, in 1991, was one of the last in a series of Joint Soviet–Mongolian Palaeontological Expeditions, organized by A. Yu. Rozanov and R. Barsbold, and led by E. A. Zhegallo and A. Yu. Zhuravlev. Scientists from Sweden and the UK also participated. The second, 1993, expedition was one of the first IGCP project meetings organized independently by the Mongolian Academy of Sciences, and was led by M. D. Brasier and D. Dorjnamjaa.

Type
Articles
Information
Geological Magazine , Volume 133 , Issue 4 , July 1996 , pp. 365 - 369
Copyright
Copyright © Cambridge University Press 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Astashkin, V., Pegel’, T. V., Repina, L. N., Belyaeva, G. V., Esakova, N. V., Rozanov, A. Yu., Zhuravlev, A. Yu., Osadchaya, D. V. & Pkhomov, N. N., 1995. The Cambrian System of the Foldbelts of Russia and Mongolia. International Union of Geological Sciences, Publication no. 32.Google Scholar
Brasier, M. D., Shields, G., Kuleshov, V. N. & Zhegallo, E. A., 1996. Integrated chemo- and biostratigraphic calibration of early animal evolution: Neoproterozoic—early Cambrian of southwest Mongolia. Geological Magazine 133, 445–85.CrossRefGoogle Scholar
Dorjnamjaa, D. & Bat-Ireedui, Y. A., 1991. Dokembriy Mongolii. Akademia Nauk MPR, Geological Institute (in Russian).Google Scholar
Evans, D. A., Zhuravlev, A. Yu., Budney, C. J. & Kirschvink, J. L., 1996. Palaeomagnetism of the Bayan Gol Formation, western Mongolia. Geological Magazine 133,487–96.CrossRefGoogle Scholar
Goldring, R. & Jensen, S., 1996. Trace fossils and biofabrics at the Precambrian—Cambrian boundary interval in western Mongolia. Geological Magazine 133,403–15.CrossRefGoogle Scholar
Ilyin, A. V., 1990. Proterozoic supercontinent, its latest Precambrian rifting, breakup, dispersal into smaller continents, and subsidence of their margins: evidence from Asia. Geology 18, 1231–4.2.3.CO;2>CrossRefGoogle Scholar
Kaufman, A. J., Knoll, A. H., Semikhatov, M. A., Grotzinger, J. P., Jacobsen, S. B. & Adams, W., 1996. Isotopic chemostratigraphy of Proterozoic—Cambrian boundary beds in the western Anabar region, northern Siberia. Geological Magazine 133, in press.CrossRefGoogle Scholar
Khomentovsky, V. V. & Gibsher, A. S., 1996. Stratigraphic sections through the Neoproterozoic—Cambrian in northern Govi-Altay, western Mongolia: regional setting, lithostratigraphy and biostratigraphy. Geological Magazine 133, 371–90.CrossRefGoogle Scholar
Khomentovsky, V. V. & Karlova, G. A., 1993. Biostratigraphy of the Vendian—Cambrian beds and the lower Cambrian boundary in Siberia. Geological Magazine 130,29–45.CrossRefGoogle Scholar
Knoll, A. H., Kaufman, A. J., Semikhatov, M. A., Grotzinger, J. P. & Adams, W., 1995. Sizing up the sub-Tommotian unconformity in Siberia. Geology 23, 1139–43.2.3.CO;2>CrossRefGoogle ScholarPubMed
Kruse, P. D., Gandin, A., Debrenne, F. & Wood, R., 1996. Early Cambrian bioconstructions in the Zavkhan Basin of western Mongolia. Geological Magazine 133,429–44.CrossRefGoogle Scholar
Lindsay, J. F., Brasier, M. D., Dorjnamjaa, D., Goldring, R., Kruse, P. D. & Wood, R. A., 1996 a. Facies and sequence controls on the appearance of the Cambrian biota in southwestern Mongolia: implications for Precambrian—Cambrian boundary. Geological Magazine 133, 417–28.CrossRefGoogle Scholar
Lindsay, J. F., Brasier, M. D., Shields, G., Khomentovsky, V. V. & Bat-Ireedui, Y. A., 1996 b. Glacial facies associations in a Neoproterozoic back-arc setting, Zavkhan Basin, western Mongolia. Geological Magazine 133, 391–402.CrossRefGoogle Scholar
Missarzhevsky, V. V., 1982. Raschlenenie i korrelyatsia pogranichnykh tolshch dokembriya i kembriya po nekotorym problematichnym gruppam skeletnykh okamenelostey. Byullten’ Moskovskogo Obschchestva Ispyatelei Prirody, Otdelenie Geologii 57, 52–68.Google Scholar
Mossakovsky, A. A., Ruzhentsev, S. V., Samgyin, S. G. & Keraskova, T. N., 1993. The Central-Asian fold belt: geodynamic evolution and formation history. Geotektonica 6, 3–32 (in Russian).Google Scholar
Powell, C., McA., Li, Z. X., McElhinny, M. W., Meert, J. G. & Park, J. K., 1993. Paleomagnetic constraints on timing of the Neoproterozoic breakup of Rodinia and the Cambrian formation of Gondwana. Geology 21, 880–92.2.3.CO;2>CrossRefGoogle Scholar
Şengör, A. M. C., Natal’in, B. A. & Burtman, V. S., 1993. Evolution of the Altaid tectonic collage and Palaeozoic crustal growth in Eurasia. Nature 364, 299–307.CrossRefGoogle Scholar
Vidal, G., Moczydlowska, M. & Rudavskaya, V. R., 1995. Constraints on the early Cambrian radiation and correlation of the Tommotian and Nemakit-daldynian regional stages of eastern Siberia. Journal of the Geological Society, London 152, 499–510.CrossRefGoogle Scholar
Voronin, Yu. I., Voronova, L. G., Grigori’eva, N. V., Drozdova, N. A., Zhegallo, E. A., Zhuravlev, A. Yu., Ragozina, A. L., Rozanov, A. Yu., Sayutina, T. A., Sysoev, V. A. & Fonin, V. D., 1982. The Precambrian/Cambrian boundary in the geosynclinal areas (the reference section of Salaany-Gol, MPR). Trudy Sovmestnoy Sovetsoko-Mongol’skoy Paleontologicheskoy Ekspeditsii, Moscow 18, 180 pp. (in Russian).Google Scholar
Wood, R., Zhuravlev, A. Yu. & Chimed, A. Tseren, 1993. The ecology of Lower Cambrian buildups from Zuune Arts, Mongolia: implications for early metazoan reef evolution. Sedimentology 40, 829–58.CrossRefGoogle Scholar
Zhuravlev, A. Yu. & Wood, R., 1995. Lower Cambrian reefal cryptic communities. Palaeontology 38, 443–70.Google Scholar